1 /* 2 ** 3 ** Copyright 2007 The Android Open Source Project 4 ** 5 ** Licensed under the Apache License Version 2.0(the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing software 12 ** distributed under the License is distributed on an "AS IS" BASIS 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <assert.h> 19 #include <errno.h> 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <string.h> 23 #include <unistd.h> 24 #include <fcntl.h> 25 #include <sys/ioctl.h> 26 #include <sys/types.h> 27 #include <sys/mman.h> 28 29 #include <cutils/log.h> 30 #include <cutils/atomic.h> 31 32 #include <utils/threads.h> 33 34 #include <EGL/egl.h> 35 #include <EGL/eglext.h> 36 #include <GLES/gl.h> 37 #include <GLES/glext.h> 38 39 #include <pixelflinger/format.h> 40 #include <pixelflinger/pixelflinger.h> 41 42 #include <private/ui/android_natives_priv.h> 43 44 #include "context.h" 45 #include "state.h" 46 #include "texture.h" 47 #include "matrix.h" 48 49 #undef NELEM 50 #define NELEM(x) (sizeof(x)/sizeof(*(x))) 51 52 53 EGLBoolean EGLAPI eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 54 EGLint left, EGLint top, EGLint width, EGLint height); 55 56 57 // ---------------------------------------------------------------------------- 58 namespace android { 59 // ---------------------------------------------------------------------------- 60 61 const unsigned int NUM_DISPLAYS = 1; 62 63 static pthread_mutex_t gInitMutex = PTHREAD_MUTEX_INITIALIZER; 64 static pthread_mutex_t gErrorKeyMutex = PTHREAD_MUTEX_INITIALIZER; 65 static pthread_key_t gEGLErrorKey = -1; 66 #ifndef HAVE_ANDROID_OS 67 namespace gl { 68 pthread_key_t gGLKey = -1; 69 }; // namespace gl 70 #endif 71 72 template<typename T> 73 static T setError(GLint error, T returnValue) { 74 if (ggl_unlikely(gEGLErrorKey == -1)) { 75 pthread_mutex_lock(&gErrorKeyMutex); 76 if (gEGLErrorKey == -1) 77 pthread_key_create(&gEGLErrorKey, NULL); 78 pthread_mutex_unlock(&gErrorKeyMutex); 79 } 80 pthread_setspecific(gEGLErrorKey, (void*)error); 81 return returnValue; 82 } 83 84 static GLint getError() { 85 if (ggl_unlikely(gEGLErrorKey == -1)) 86 return EGL_SUCCESS; 87 GLint error = (GLint)pthread_getspecific(gEGLErrorKey); 88 if (error == 0) { 89 // The TLS key has been created by another thread, but the value for 90 // this thread has not been initialized. 91 return EGL_SUCCESS; 92 } 93 pthread_setspecific(gEGLErrorKey, (void*)EGL_SUCCESS); 94 return error; 95 } 96 97 // ---------------------------------------------------------------------------- 98 99 struct egl_display_t 100 { 101 egl_display_t() : type(0), initialized(0) { } 102 103 static egl_display_t& get_display(EGLDisplay dpy); 104 105 static EGLBoolean is_valid(EGLDisplay dpy) { 106 return ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) ? EGL_FALSE : EGL_TRUE; 107 } 108 109 NativeDisplayType type; 110 volatile int32_t initialized; 111 }; 112 113 static egl_display_t gDisplays[NUM_DISPLAYS]; 114 115 egl_display_t& egl_display_t::get_display(EGLDisplay dpy) { 116 return gDisplays[uintptr_t(dpy)-1U]; 117 } 118 119 struct egl_context_t { 120 enum { 121 IS_CURRENT = 0x00010000, 122 NEVER_CURRENT = 0x00020000 123 }; 124 uint32_t flags; 125 EGLDisplay dpy; 126 EGLConfig config; 127 EGLSurface read; 128 EGLSurface draw; 129 130 static inline egl_context_t* context(EGLContext ctx) { 131 ogles_context_t* const gl = static_cast<ogles_context_t*>(ctx); 132 return static_cast<egl_context_t*>(gl->rasterizer.base); 133 } 134 }; 135 136 // ---------------------------------------------------------------------------- 137 138 struct egl_surface_t 139 { 140 enum { 141 PAGE_FLIP = 0x00000001, 142 MAGIC = 0x31415265 143 }; 144 145 uint32_t magic; 146 EGLDisplay dpy; 147 EGLConfig config; 148 EGLContext ctx; 149 150 egl_surface_t(EGLDisplay dpy, EGLConfig config, int32_t depthFormat); 151 virtual ~egl_surface_t(); 152 bool isValid() const; 153 virtual bool initCheck() const = 0; 154 155 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl) = 0; 156 virtual EGLBoolean bindReadSurface(ogles_context_t* gl) = 0; 157 virtual EGLBoolean connect() { return EGL_TRUE; } 158 virtual void disconnect() {} 159 virtual EGLint getWidth() const = 0; 160 virtual EGLint getHeight() const = 0; 161 162 virtual EGLint getHorizontalResolution() const; 163 virtual EGLint getVerticalResolution() const; 164 virtual EGLint getRefreshRate() const; 165 virtual EGLint getSwapBehavior() const; 166 virtual EGLBoolean swapBuffers(); 167 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 168 protected: 169 GGLSurface depth; 170 }; 171 172 egl_surface_t::egl_surface_t(EGLDisplay dpy, 173 EGLConfig config, 174 int32_t depthFormat) 175 : magic(MAGIC), dpy(dpy), config(config), ctx(0) 176 { 177 depth.version = sizeof(GGLSurface); 178 depth.data = 0; 179 depth.format = depthFormat; 180 } 181 egl_surface_t::~egl_surface_t() 182 { 183 magic = 0; 184 free(depth.data); 185 } 186 bool egl_surface_t::isValid() const { 187 LOGE_IF(magic != MAGIC, "invalid EGLSurface (%p)", this); 188 return magic == MAGIC; 189 } 190 191 EGLBoolean egl_surface_t::swapBuffers() { 192 return EGL_FALSE; 193 } 194 EGLint egl_surface_t::getHorizontalResolution() const { 195 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 196 } 197 EGLint egl_surface_t::getVerticalResolution() const { 198 return (0 * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 199 } 200 EGLint egl_surface_t::getRefreshRate() const { 201 return (60 * EGL_DISPLAY_SCALING); 202 } 203 EGLint egl_surface_t::getSwapBehavior() const { 204 return EGL_BUFFER_PRESERVED; 205 } 206 EGLBoolean egl_surface_t::setSwapRectangle( 207 EGLint l, EGLint t, EGLint w, EGLint h) 208 { 209 return EGL_FALSE; 210 } 211 212 // ---------------------------------------------------------------------------- 213 214 struct egl_window_surface_v2_t : public egl_surface_t 215 { 216 egl_window_surface_v2_t( 217 EGLDisplay dpy, EGLConfig config, 218 int32_t depthFormat, 219 ANativeWindow* window); 220 221 ~egl_window_surface_v2_t(); 222 223 virtual bool initCheck() const { return true; } // TODO: report failure if ctor fails 224 virtual EGLBoolean swapBuffers(); 225 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 226 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 227 virtual EGLBoolean connect(); 228 virtual void disconnect(); 229 virtual EGLint getWidth() const { return width; } 230 virtual EGLint getHeight() const { return height; } 231 virtual EGLint getHorizontalResolution() const; 232 virtual EGLint getVerticalResolution() const; 233 virtual EGLint getRefreshRate() const; 234 virtual EGLint getSwapBehavior() const; 235 virtual EGLBoolean setSwapRectangle(EGLint l, EGLint t, EGLint w, EGLint h); 236 237 private: 238 status_t lock(ANativeWindowBuffer* buf, int usage, void** vaddr); 239 status_t unlock(ANativeWindowBuffer* buf); 240 ANativeWindow* nativeWindow; 241 ANativeWindowBuffer* buffer; 242 ANativeWindowBuffer* previousBuffer; 243 gralloc_module_t const* module; 244 int width; 245 int height; 246 void* bits; 247 GGLFormat const* pixelFormatTable; 248 249 struct Rect { 250 inline Rect() { }; 251 inline Rect(int32_t w, int32_t h) 252 : left(0), top(0), right(w), bottom(h) { } 253 inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) 254 : left(l), top(t), right(r), bottom(b) { } 255 Rect& andSelf(const Rect& r) { 256 left = max(left, r.left); 257 top = max(top, r.top); 258 right = min(right, r.right); 259 bottom = min(bottom, r.bottom); 260 return *this; 261 } 262 bool isEmpty() const { 263 return (left>=right || top>=bottom); 264 } 265 void dump(char const* what) { 266 LOGD("%s { %5d, %5d, w=%5d, h=%5d }", 267 what, left, top, right-left, bottom-top); 268 } 269 270 int32_t left; 271 int32_t top; 272 int32_t right; 273 int32_t bottom; 274 }; 275 276 struct Region { 277 inline Region() : count(0) { } 278 typedef Rect const* const_iterator; 279 const_iterator begin() const { return storage; } 280 const_iterator end() const { return storage+count; } 281 static Region subtract(const Rect& lhs, const Rect& rhs) { 282 Region reg; 283 Rect* storage = reg.storage; 284 if (!lhs.isEmpty()) { 285 if (lhs.top < rhs.top) { // top rect 286 storage->left = lhs.left; 287 storage->top = lhs.top; 288 storage->right = lhs.right; 289 storage->bottom = rhs.top; 290 storage++; 291 } 292 const int32_t top = max(lhs.top, rhs.top); 293 const int32_t bot = min(lhs.bottom, rhs.bottom); 294 if (top < bot) { 295 if (lhs.left < rhs.left) { // left-side rect 296 storage->left = lhs.left; 297 storage->top = top; 298 storage->right = rhs.left; 299 storage->bottom = bot; 300 storage++; 301 } 302 if (lhs.right > rhs.right) { // right-side rect 303 storage->left = rhs.right; 304 storage->top = top; 305 storage->right = lhs.right; 306 storage->bottom = bot; 307 storage++; 308 } 309 } 310 if (lhs.bottom > rhs.bottom) { // bottom rect 311 storage->left = lhs.left; 312 storage->top = rhs.bottom; 313 storage->right = lhs.right; 314 storage->bottom = lhs.bottom; 315 storage++; 316 } 317 reg.count = storage - reg.storage; 318 } 319 return reg; 320 } 321 bool isEmpty() const { 322 return count<=0; 323 } 324 private: 325 Rect storage[4]; 326 ssize_t count; 327 }; 328 329 void copyBlt( 330 ANativeWindowBuffer* dst, void* dst_vaddr, 331 ANativeWindowBuffer* src, void const* src_vaddr, 332 const Region& clip); 333 334 Rect dirtyRegion; 335 Rect oldDirtyRegion; 336 }; 337 338 egl_window_surface_v2_t::egl_window_surface_v2_t(EGLDisplay dpy, 339 EGLConfig config, 340 int32_t depthFormat, 341 ANativeWindow* window) 342 : egl_surface_t(dpy, config, depthFormat), 343 nativeWindow(window), buffer(0), previousBuffer(0), module(0), 344 bits(NULL) 345 { 346 hw_module_t const* pModule; 347 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &pModule); 348 module = reinterpret_cast<gralloc_module_t const*>(pModule); 349 350 pixelFormatTable = gglGetPixelFormatTable(); 351 352 // keep a reference on the window 353 nativeWindow->common.incRef(&nativeWindow->common); 354 nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &width); 355 nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &height); 356 } 357 358 egl_window_surface_v2_t::~egl_window_surface_v2_t() { 359 if (buffer) { 360 buffer->common.decRef(&buffer->common); 361 } 362 if (previousBuffer) { 363 previousBuffer->common.decRef(&previousBuffer->common); 364 } 365 nativeWindow->common.decRef(&nativeWindow->common); 366 } 367 368 EGLBoolean egl_window_surface_v2_t::connect() 369 { 370 // we're intending to do software rendering 371 native_window_set_usage(nativeWindow, 372 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); 373 374 // dequeue a buffer 375 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) { 376 return setError(EGL_BAD_ALLOC, EGL_FALSE); 377 } 378 379 // allocate a corresponding depth-buffer 380 width = buffer->width; 381 height = buffer->height; 382 if (depth.format) { 383 depth.width = width; 384 depth.height = height; 385 depth.stride = depth.width; // use the width here 386 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 387 if (depth.data == 0) { 388 return setError(EGL_BAD_ALLOC, EGL_FALSE); 389 } 390 } 391 392 // keep a reference on the buffer 393 buffer->common.incRef(&buffer->common); 394 395 // Lock the buffer 396 nativeWindow->lockBuffer(nativeWindow, buffer); 397 // pin the buffer down 398 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 399 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 400 LOGE("connect() failed to lock buffer %p (%ux%u)", 401 buffer, buffer->width, buffer->height); 402 return setError(EGL_BAD_ACCESS, EGL_FALSE); 403 // FIXME: we should make sure we're not accessing the buffer anymore 404 } 405 return EGL_TRUE; 406 } 407 408 void egl_window_surface_v2_t::disconnect() 409 { 410 if (buffer && bits) { 411 bits = NULL; 412 unlock(buffer); 413 } 414 // enqueue the last frame 415 nativeWindow->queueBuffer(nativeWindow, buffer); 416 if (buffer) { 417 buffer->common.decRef(&buffer->common); 418 buffer = 0; 419 } 420 if (previousBuffer) { 421 previousBuffer->common.decRef(&previousBuffer->common); 422 previousBuffer = 0; 423 } 424 } 425 426 status_t egl_window_surface_v2_t::lock( 427 ANativeWindowBuffer* buf, int usage, void** vaddr) 428 { 429 int err; 430 431 err = module->lock(module, buf->handle, 432 usage, 0, 0, buf->width, buf->height, vaddr); 433 434 return err; 435 } 436 437 status_t egl_window_surface_v2_t::unlock(ANativeWindowBuffer* buf) 438 { 439 if (!buf) return BAD_VALUE; 440 int err = NO_ERROR; 441 442 err = module->unlock(module, buf->handle); 443 444 return err; 445 } 446 447 void egl_window_surface_v2_t::copyBlt( 448 ANativeWindowBuffer* dst, void* dst_vaddr, 449 ANativeWindowBuffer* src, void const* src_vaddr, 450 const Region& clip) 451 { 452 // NOTE: dst and src must be the same format 453 454 Region::const_iterator cur = clip.begin(); 455 Region::const_iterator end = clip.end(); 456 457 const size_t bpp = pixelFormatTable[src->format].size; 458 const size_t dbpr = dst->stride * bpp; 459 const size_t sbpr = src->stride * bpp; 460 461 uint8_t const * const src_bits = (uint8_t const *)src_vaddr; 462 uint8_t * const dst_bits = (uint8_t *)dst_vaddr; 463 464 while (cur != end) { 465 const Rect& r(*cur++); 466 ssize_t w = r.right - r.left; 467 ssize_t h = r.bottom - r.top; 468 if (w <= 0 || h<=0) continue; 469 size_t size = w * bpp; 470 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp; 471 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp; 472 if (dbpr==sbpr && size==sbpr) { 473 size *= h; 474 h = 1; 475 } 476 do { 477 memcpy(d, s, size); 478 d += dbpr; 479 s += sbpr; 480 } while (--h > 0); 481 } 482 } 483 484 EGLBoolean egl_window_surface_v2_t::swapBuffers() 485 { 486 if (!buffer) { 487 return setError(EGL_BAD_ACCESS, EGL_FALSE); 488 } 489 490 /* 491 * Handle eglSetSwapRectangleANDROID() 492 * We copyback from the front buffer 493 */ 494 if (!dirtyRegion.isEmpty()) { 495 dirtyRegion.andSelf(Rect(buffer->width, buffer->height)); 496 if (previousBuffer) { 497 // This was const Region copyBack, but that causes an 498 // internal compile error on simulator builds 499 /*const*/ Region copyBack(Region::subtract(oldDirtyRegion, dirtyRegion)); 500 if (!copyBack.isEmpty()) { 501 void* prevBits; 502 if (lock(previousBuffer, 503 GRALLOC_USAGE_SW_READ_OFTEN, &prevBits) == NO_ERROR) { 504 // copy from previousBuffer to buffer 505 copyBlt(buffer, bits, previousBuffer, prevBits, copyBack); 506 unlock(previousBuffer); 507 } 508 } 509 } 510 oldDirtyRegion = dirtyRegion; 511 } 512 513 if (previousBuffer) { 514 previousBuffer->common.decRef(&previousBuffer->common); 515 previousBuffer = 0; 516 } 517 518 unlock(buffer); 519 previousBuffer = buffer; 520 nativeWindow->queueBuffer(nativeWindow, buffer); 521 buffer = 0; 522 523 // dequeue a new buffer 524 if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) == NO_ERROR) { 525 526 // TODO: lockBuffer should rather be executed when the very first 527 // direct rendering occurs. 528 nativeWindow->lockBuffer(nativeWindow, buffer); 529 530 // reallocate the depth-buffer if needed 531 if ((width != buffer->width) || (height != buffer->height)) { 532 // TODO: we probably should reset the swap rect here 533 // if the window size has changed 534 width = buffer->width; 535 height = buffer->height; 536 if (depth.data) { 537 free(depth.data); 538 depth.width = width; 539 depth.height = height; 540 depth.stride = buffer->stride; 541 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 542 if (depth.data == 0) { 543 setError(EGL_BAD_ALLOC, EGL_FALSE); 544 return EGL_FALSE; 545 } 546 } 547 } 548 549 // keep a reference on the buffer 550 buffer->common.incRef(&buffer->common); 551 552 // finally pin the buffer down 553 if (lock(buffer, GRALLOC_USAGE_SW_READ_OFTEN | 554 GRALLOC_USAGE_SW_WRITE_OFTEN, &bits) != NO_ERROR) { 555 LOGE("eglSwapBuffers() failed to lock buffer %p (%ux%u)", 556 buffer, buffer->width, buffer->height); 557 return setError(EGL_BAD_ACCESS, EGL_FALSE); 558 // FIXME: we should make sure we're not accessing the buffer anymore 559 } 560 } else { 561 return setError(EGL_BAD_CURRENT_SURFACE, EGL_FALSE); 562 } 563 564 return EGL_TRUE; 565 } 566 567 EGLBoolean egl_window_surface_v2_t::setSwapRectangle( 568 EGLint l, EGLint t, EGLint w, EGLint h) 569 { 570 dirtyRegion = Rect(l, t, l+w, t+h); 571 return EGL_TRUE; 572 } 573 574 EGLBoolean egl_window_surface_v2_t::bindDrawSurface(ogles_context_t* gl) 575 { 576 GGLSurface buffer; 577 buffer.version = sizeof(GGLSurface); 578 buffer.width = this->buffer->width; 579 buffer.height = this->buffer->height; 580 buffer.stride = this->buffer->stride; 581 buffer.data = (GGLubyte*)bits; 582 buffer.format = this->buffer->format; 583 gl->rasterizer.procs.colorBuffer(gl, &buffer); 584 if (depth.data != gl->rasterizer.state.buffers.depth.data) 585 gl->rasterizer.procs.depthBuffer(gl, &depth); 586 587 return EGL_TRUE; 588 } 589 EGLBoolean egl_window_surface_v2_t::bindReadSurface(ogles_context_t* gl) 590 { 591 GGLSurface buffer; 592 buffer.version = sizeof(GGLSurface); 593 buffer.width = this->buffer->width; 594 buffer.height = this->buffer->height; 595 buffer.stride = this->buffer->stride; 596 buffer.data = (GGLubyte*)bits; // FIXME: hopefully is is LOCKED!!! 597 buffer.format = this->buffer->format; 598 gl->rasterizer.procs.readBuffer(gl, &buffer); 599 return EGL_TRUE; 600 } 601 EGLint egl_window_surface_v2_t::getHorizontalResolution() const { 602 return (nativeWindow->xdpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 603 } 604 EGLint egl_window_surface_v2_t::getVerticalResolution() const { 605 return (nativeWindow->ydpi * EGL_DISPLAY_SCALING) * (1.0f / 25.4f); 606 } 607 EGLint egl_window_surface_v2_t::getRefreshRate() const { 608 return (60 * EGL_DISPLAY_SCALING); // FIXME 609 } 610 EGLint egl_window_surface_v2_t::getSwapBehavior() const 611 { 612 /* 613 * EGL_BUFFER_PRESERVED means that eglSwapBuffers() completely preserves 614 * the content of the swapped buffer. 615 * 616 * EGL_BUFFER_DESTROYED means that the content of the buffer is lost. 617 * 618 * However when ANDROID_swap_retcangle is supported, EGL_BUFFER_DESTROYED 619 * only applies to the area specified by eglSetSwapRectangleANDROID(), that 620 * is, everything outside of this area is preserved. 621 * 622 * This implementation of EGL assumes the later case. 623 * 624 */ 625 626 return EGL_BUFFER_DESTROYED; 627 } 628 629 // ---------------------------------------------------------------------------- 630 631 struct egl_pixmap_surface_t : public egl_surface_t 632 { 633 egl_pixmap_surface_t( 634 EGLDisplay dpy, EGLConfig config, 635 int32_t depthFormat, 636 egl_native_pixmap_t const * pixmap); 637 638 virtual ~egl_pixmap_surface_t() { } 639 640 virtual bool initCheck() const { return !depth.format || depth.data!=0; } 641 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 642 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 643 virtual EGLint getWidth() const { return nativePixmap.width; } 644 virtual EGLint getHeight() const { return nativePixmap.height; } 645 private: 646 egl_native_pixmap_t nativePixmap; 647 }; 648 649 egl_pixmap_surface_t::egl_pixmap_surface_t(EGLDisplay dpy, 650 EGLConfig config, 651 int32_t depthFormat, 652 egl_native_pixmap_t const * pixmap) 653 : egl_surface_t(dpy, config, depthFormat), nativePixmap(*pixmap) 654 { 655 if (depthFormat) { 656 depth.width = pixmap->width; 657 depth.height = pixmap->height; 658 depth.stride = depth.width; // use the width here 659 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 660 if (depth.data == 0) { 661 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 662 } 663 } 664 } 665 EGLBoolean egl_pixmap_surface_t::bindDrawSurface(ogles_context_t* gl) 666 { 667 GGLSurface buffer; 668 buffer.version = sizeof(GGLSurface); 669 buffer.width = nativePixmap.width; 670 buffer.height = nativePixmap.height; 671 buffer.stride = nativePixmap.stride; 672 buffer.data = nativePixmap.data; 673 buffer.format = nativePixmap.format; 674 675 gl->rasterizer.procs.colorBuffer(gl, &buffer); 676 if (depth.data != gl->rasterizer.state.buffers.depth.data) 677 gl->rasterizer.procs.depthBuffer(gl, &depth); 678 return EGL_TRUE; 679 } 680 EGLBoolean egl_pixmap_surface_t::bindReadSurface(ogles_context_t* gl) 681 { 682 GGLSurface buffer; 683 buffer.version = sizeof(GGLSurface); 684 buffer.width = nativePixmap.width; 685 buffer.height = nativePixmap.height; 686 buffer.stride = nativePixmap.stride; 687 buffer.data = nativePixmap.data; 688 buffer.format = nativePixmap.format; 689 gl->rasterizer.procs.readBuffer(gl, &buffer); 690 return EGL_TRUE; 691 } 692 693 // ---------------------------------------------------------------------------- 694 695 struct egl_pbuffer_surface_t : public egl_surface_t 696 { 697 egl_pbuffer_surface_t( 698 EGLDisplay dpy, EGLConfig config, int32_t depthFormat, 699 int32_t w, int32_t h, int32_t f); 700 701 virtual ~egl_pbuffer_surface_t(); 702 703 virtual bool initCheck() const { return pbuffer.data != 0; } 704 virtual EGLBoolean bindDrawSurface(ogles_context_t* gl); 705 virtual EGLBoolean bindReadSurface(ogles_context_t* gl); 706 virtual EGLint getWidth() const { return pbuffer.width; } 707 virtual EGLint getHeight() const { return pbuffer.height; } 708 private: 709 GGLSurface pbuffer; 710 }; 711 712 egl_pbuffer_surface_t::egl_pbuffer_surface_t(EGLDisplay dpy, 713 EGLConfig config, int32_t depthFormat, 714 int32_t w, int32_t h, int32_t f) 715 : egl_surface_t(dpy, config, depthFormat) 716 { 717 size_t size = w*h; 718 switch (f) { 719 case GGL_PIXEL_FORMAT_A_8: size *= 1; break; 720 case GGL_PIXEL_FORMAT_RGB_565: size *= 2; break; 721 case GGL_PIXEL_FORMAT_RGBA_8888: size *= 4; break; 722 case GGL_PIXEL_FORMAT_RGBX_8888: size *= 4; break; 723 default: 724 LOGE("incompatible pixel format for pbuffer (format=%d)", f); 725 pbuffer.data = 0; 726 break; 727 } 728 pbuffer.version = sizeof(GGLSurface); 729 pbuffer.width = w; 730 pbuffer.height = h; 731 pbuffer.stride = w; 732 pbuffer.data = (GGLubyte*)malloc(size); 733 pbuffer.format = f; 734 735 if (depthFormat) { 736 depth.width = pbuffer.width; 737 depth.height = pbuffer.height; 738 depth.stride = depth.width; // use the width here 739 depth.data = (GGLubyte*)malloc(depth.stride*depth.height*2); 740 if (depth.data == 0) { 741 setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); 742 return; 743 } 744 } 745 } 746 egl_pbuffer_surface_t::~egl_pbuffer_surface_t() { 747 free(pbuffer.data); 748 } 749 EGLBoolean egl_pbuffer_surface_t::bindDrawSurface(ogles_context_t* gl) 750 { 751 gl->rasterizer.procs.colorBuffer(gl, &pbuffer); 752 if (depth.data != gl->rasterizer.state.buffers.depth.data) 753 gl->rasterizer.procs.depthBuffer(gl, &depth); 754 return EGL_TRUE; 755 } 756 EGLBoolean egl_pbuffer_surface_t::bindReadSurface(ogles_context_t* gl) 757 { 758 gl->rasterizer.procs.readBuffer(gl, &pbuffer); 759 return EGL_TRUE; 760 } 761 762 // ---------------------------------------------------------------------------- 763 764 struct config_pair_t { 765 GLint key; 766 GLint value; 767 }; 768 769 struct configs_t { 770 const config_pair_t* array; 771 int size; 772 }; 773 774 struct config_management_t { 775 GLint key; 776 bool (*match)(GLint reqValue, GLint confValue); 777 static bool atLeast(GLint reqValue, GLint confValue) { 778 return (reqValue == EGL_DONT_CARE) || (confValue >= reqValue); 779 } 780 static bool exact(GLint reqValue, GLint confValue) { 781 return (reqValue == EGL_DONT_CARE) || (confValue == reqValue); 782 } 783 static bool mask(GLint reqValue, GLint confValue) { 784 return (confValue & reqValue) == reqValue; 785 } 786 static bool ignore(GLint reqValue, GLint confValue) { 787 return true; 788 } 789 }; 790 791 // ---------------------------------------------------------------------------- 792 793 #define VERSION_MAJOR 1 794 #define VERSION_MINOR 2 795 static char const * const gVendorString = "Google Inc."; 796 static char const * const gVersionString = "1.2 Android Driver 1.2.0"; 797 static char const * const gClientApiString = "OpenGL ES"; 798 static char const * const gExtensionsString = 799 "EGL_KHR_image_base " 800 // "KHR_image_pixmap " 801 "EGL_ANDROID_image_native_buffer " 802 "EGL_ANDROID_swap_rectangle " 803 ; 804 805 // ---------------------------------------------------------------------------- 806 807 struct extention_map_t { 808 const char * const name; 809 __eglMustCastToProperFunctionPointerType address; 810 }; 811 812 static const extention_map_t gExtentionMap[] = { 813 { "glDrawTexsOES", 814 (__eglMustCastToProperFunctionPointerType)&glDrawTexsOES }, 815 { "glDrawTexiOES", 816 (__eglMustCastToProperFunctionPointerType)&glDrawTexiOES }, 817 { "glDrawTexfOES", 818 (__eglMustCastToProperFunctionPointerType)&glDrawTexfOES }, 819 { "glDrawTexxOES", 820 (__eglMustCastToProperFunctionPointerType)&glDrawTexxOES }, 821 { "glDrawTexsvOES", 822 (__eglMustCastToProperFunctionPointerType)&glDrawTexsvOES }, 823 { "glDrawTexivOES", 824 (__eglMustCastToProperFunctionPointerType)&glDrawTexivOES }, 825 { "glDrawTexfvOES", 826 (__eglMustCastToProperFunctionPointerType)&glDrawTexfvOES }, 827 { "glDrawTexxvOES", 828 (__eglMustCastToProperFunctionPointerType)&glDrawTexxvOES }, 829 { "glQueryMatrixxOES", 830 (__eglMustCastToProperFunctionPointerType)&glQueryMatrixxOES }, 831 { "glEGLImageTargetTexture2DOES", 832 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetTexture2DOES }, 833 { "glEGLImageTargetRenderbufferStorageOES", 834 (__eglMustCastToProperFunctionPointerType)&glEGLImageTargetRenderbufferStorageOES }, 835 { "glClipPlanef", 836 (__eglMustCastToProperFunctionPointerType)&glClipPlanef }, 837 { "glClipPlanex", 838 (__eglMustCastToProperFunctionPointerType)&glClipPlanex }, 839 { "glBindBuffer", 840 (__eglMustCastToProperFunctionPointerType)&glBindBuffer }, 841 { "glBufferData", 842 (__eglMustCastToProperFunctionPointerType)&glBufferData }, 843 { "glBufferSubData", 844 (__eglMustCastToProperFunctionPointerType)&glBufferSubData }, 845 { "glDeleteBuffers", 846 (__eglMustCastToProperFunctionPointerType)&glDeleteBuffers }, 847 { "glGenBuffers", 848 (__eglMustCastToProperFunctionPointerType)&glGenBuffers }, 849 { "eglCreateImageKHR", 850 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 851 { "eglDestroyImageKHR", 852 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 853 { "eglSetSwapRectangleANDROID", 854 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 855 }; 856 857 /* 858 * In the lists below, attributes names MUST be sorted. 859 * Additionally, all configs must be sorted according to 860 * the EGL specification. 861 */ 862 863 static config_pair_t const config_base_attribute_list[] = { 864 { EGL_STENCIL_SIZE, 0 }, 865 { EGL_CONFIG_CAVEAT, EGL_SLOW_CONFIG }, 866 { EGL_LEVEL, 0 }, 867 { EGL_MAX_PBUFFER_HEIGHT, GGL_MAX_VIEWPORT_DIMS }, 868 { EGL_MAX_PBUFFER_PIXELS, 869 GGL_MAX_VIEWPORT_DIMS*GGL_MAX_VIEWPORT_DIMS }, 870 { EGL_MAX_PBUFFER_WIDTH, GGL_MAX_VIEWPORT_DIMS }, 871 { EGL_NATIVE_RENDERABLE, EGL_TRUE }, 872 { EGL_NATIVE_VISUAL_ID, 0 }, 873 { EGL_NATIVE_VISUAL_TYPE, GGL_PIXEL_FORMAT_RGB_565 }, 874 { EGL_SAMPLES, 0 }, 875 { EGL_SAMPLE_BUFFERS, 0 }, 876 { EGL_TRANSPARENT_TYPE, EGL_NONE }, 877 { EGL_TRANSPARENT_BLUE_VALUE, 0 }, 878 { EGL_TRANSPARENT_GREEN_VALUE, 0 }, 879 { EGL_TRANSPARENT_RED_VALUE, 0 }, 880 { EGL_BIND_TO_TEXTURE_RGBA, EGL_FALSE }, 881 { EGL_BIND_TO_TEXTURE_RGB, EGL_FALSE }, 882 { EGL_MIN_SWAP_INTERVAL, 1 }, 883 { EGL_MAX_SWAP_INTERVAL, 1 }, 884 { EGL_LUMINANCE_SIZE, 0 }, 885 { EGL_ALPHA_MASK_SIZE, 0 }, 886 { EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER }, 887 { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT }, 888 { EGL_CONFORMANT, 0 } 889 }; 890 891 // These configs can override the base attribute list 892 // NOTE: when adding a config here, don't forget to update eglCreate*Surface() 893 894 // 565 configs 895 static config_pair_t const config_0_attribute_list[] = { 896 { EGL_BUFFER_SIZE, 16 }, 897 { EGL_ALPHA_SIZE, 0 }, 898 { EGL_BLUE_SIZE, 5 }, 899 { EGL_GREEN_SIZE, 6 }, 900 { EGL_RED_SIZE, 5 }, 901 { EGL_DEPTH_SIZE, 0 }, 902 { EGL_CONFIG_ID, 0 }, 903 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 904 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 905 }; 906 907 static config_pair_t const config_1_attribute_list[] = { 908 { EGL_BUFFER_SIZE, 16 }, 909 { EGL_ALPHA_SIZE, 0 }, 910 { EGL_BLUE_SIZE, 5 }, 911 { EGL_GREEN_SIZE, 6 }, 912 { EGL_RED_SIZE, 5 }, 913 { EGL_DEPTH_SIZE, 16 }, 914 { EGL_CONFIG_ID, 1 }, 915 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGB_565 }, 916 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 917 }; 918 919 // RGB 888 configs 920 static config_pair_t const config_2_attribute_list[] = { 921 { EGL_BUFFER_SIZE, 32 }, 922 { EGL_ALPHA_SIZE, 0 }, 923 { EGL_BLUE_SIZE, 8 }, 924 { EGL_GREEN_SIZE, 8 }, 925 { EGL_RED_SIZE, 8 }, 926 { EGL_DEPTH_SIZE, 0 }, 927 { EGL_CONFIG_ID, 6 }, 928 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 929 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 930 }; 931 932 static config_pair_t const config_3_attribute_list[] = { 933 { EGL_BUFFER_SIZE, 32 }, 934 { EGL_ALPHA_SIZE, 0 }, 935 { EGL_BLUE_SIZE, 8 }, 936 { EGL_GREEN_SIZE, 8 }, 937 { EGL_RED_SIZE, 8 }, 938 { EGL_DEPTH_SIZE, 16 }, 939 { EGL_CONFIG_ID, 7 }, 940 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBX_8888 }, 941 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 942 }; 943 944 // 8888 configs 945 static config_pair_t const config_4_attribute_list[] = { 946 { EGL_BUFFER_SIZE, 32 }, 947 { EGL_ALPHA_SIZE, 8 }, 948 { EGL_BLUE_SIZE, 8 }, 949 { EGL_GREEN_SIZE, 8 }, 950 { EGL_RED_SIZE, 8 }, 951 { EGL_DEPTH_SIZE, 0 }, 952 { EGL_CONFIG_ID, 2 }, 953 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 954 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 955 }; 956 957 static config_pair_t const config_5_attribute_list[] = { 958 { EGL_BUFFER_SIZE, 32 }, 959 { EGL_ALPHA_SIZE, 8 }, 960 { EGL_BLUE_SIZE, 8 }, 961 { EGL_GREEN_SIZE, 8 }, 962 { EGL_RED_SIZE, 8 }, 963 { EGL_DEPTH_SIZE, 16 }, 964 { EGL_CONFIG_ID, 3 }, 965 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_RGBA_8888 }, 966 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 967 }; 968 969 // A8 configs 970 static config_pair_t const config_6_attribute_list[] = { 971 { EGL_BUFFER_SIZE, 8 }, 972 { EGL_ALPHA_SIZE, 8 }, 973 { EGL_BLUE_SIZE, 0 }, 974 { EGL_GREEN_SIZE, 0 }, 975 { EGL_RED_SIZE, 0 }, 976 { EGL_DEPTH_SIZE, 0 }, 977 { EGL_CONFIG_ID, 4 }, 978 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 979 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 980 }; 981 982 static config_pair_t const config_7_attribute_list[] = { 983 { EGL_BUFFER_SIZE, 8 }, 984 { EGL_ALPHA_SIZE, 8 }, 985 { EGL_BLUE_SIZE, 0 }, 986 { EGL_GREEN_SIZE, 0 }, 987 { EGL_RED_SIZE, 0 }, 988 { EGL_DEPTH_SIZE, 16 }, 989 { EGL_CONFIG_ID, 5 }, 990 { EGL_NATIVE_VISUAL_ID, GGL_PIXEL_FORMAT_A_8 }, 991 { EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT|EGL_PIXMAP_BIT }, 992 }; 993 994 static configs_t const gConfigs[] = { 995 { config_0_attribute_list, NELEM(config_0_attribute_list) }, 996 { config_1_attribute_list, NELEM(config_1_attribute_list) }, 997 { config_2_attribute_list, NELEM(config_2_attribute_list) }, 998 { config_3_attribute_list, NELEM(config_3_attribute_list) }, 999 { config_4_attribute_list, NELEM(config_4_attribute_list) }, 1000 { config_5_attribute_list, NELEM(config_5_attribute_list) }, 1001 { config_6_attribute_list, NELEM(config_6_attribute_list) }, 1002 { config_7_attribute_list, NELEM(config_7_attribute_list) }, 1003 }; 1004 1005 static config_management_t const gConfigManagement[] = { 1006 { EGL_BUFFER_SIZE, config_management_t::atLeast }, 1007 { EGL_ALPHA_SIZE, config_management_t::atLeast }, 1008 { EGL_BLUE_SIZE, config_management_t::atLeast }, 1009 { EGL_GREEN_SIZE, config_management_t::atLeast }, 1010 { EGL_RED_SIZE, config_management_t::atLeast }, 1011 { EGL_DEPTH_SIZE, config_management_t::atLeast }, 1012 { EGL_STENCIL_SIZE, config_management_t::atLeast }, 1013 { EGL_CONFIG_CAVEAT, config_management_t::exact }, 1014 { EGL_CONFIG_ID, config_management_t::exact }, 1015 { EGL_LEVEL, config_management_t::exact }, 1016 { EGL_MAX_PBUFFER_HEIGHT, config_management_t::ignore }, 1017 { EGL_MAX_PBUFFER_PIXELS, config_management_t::ignore }, 1018 { EGL_MAX_PBUFFER_WIDTH, config_management_t::ignore }, 1019 { EGL_NATIVE_RENDERABLE, config_management_t::exact }, 1020 { EGL_NATIVE_VISUAL_ID, config_management_t::ignore }, 1021 { EGL_NATIVE_VISUAL_TYPE, config_management_t::exact }, 1022 { EGL_SAMPLES, config_management_t::exact }, 1023 { EGL_SAMPLE_BUFFERS, config_management_t::exact }, 1024 { EGL_SURFACE_TYPE, config_management_t::mask }, 1025 { EGL_TRANSPARENT_TYPE, config_management_t::exact }, 1026 { EGL_TRANSPARENT_BLUE_VALUE, config_management_t::exact }, 1027 { EGL_TRANSPARENT_GREEN_VALUE, config_management_t::exact }, 1028 { EGL_TRANSPARENT_RED_VALUE, config_management_t::exact }, 1029 { EGL_BIND_TO_TEXTURE_RGBA, config_management_t::exact }, 1030 { EGL_BIND_TO_TEXTURE_RGB, config_management_t::exact }, 1031 { EGL_MIN_SWAP_INTERVAL, config_management_t::exact }, 1032 { EGL_MAX_SWAP_INTERVAL, config_management_t::exact }, 1033 { EGL_LUMINANCE_SIZE, config_management_t::atLeast }, 1034 { EGL_ALPHA_MASK_SIZE, config_management_t::atLeast }, 1035 { EGL_COLOR_BUFFER_TYPE, config_management_t::exact }, 1036 { EGL_RENDERABLE_TYPE, config_management_t::mask }, 1037 { EGL_CONFORMANT, config_management_t::mask } 1038 }; 1039 1040 1041 static config_pair_t const config_defaults[] = { 1042 // attributes that are not specified are simply ignored, if a particular 1043 // one needs not be ignored, it must be specified here, eg: 1044 // { EGL_SURFACE_TYPE, EGL_WINDOW_BIT }, 1045 }; 1046 1047 // ---------------------------------------------------------------------------- 1048 1049 static status_t getConfigFormatInfo(EGLint configID, 1050 int32_t& pixelFormat, int32_t& depthFormat) 1051 { 1052 switch(configID) { 1053 case 0: 1054 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1055 depthFormat = 0; 1056 break; 1057 case 1: 1058 pixelFormat = GGL_PIXEL_FORMAT_RGB_565; 1059 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1060 break; 1061 case 2: 1062 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1063 depthFormat = 0; 1064 break; 1065 case 3: 1066 pixelFormat = GGL_PIXEL_FORMAT_RGBX_8888; 1067 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1068 break; 1069 case 4: 1070 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1071 depthFormat = 0; 1072 break; 1073 case 5: 1074 pixelFormat = GGL_PIXEL_FORMAT_RGBA_8888; 1075 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1076 break; 1077 case 6: 1078 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1079 depthFormat = 0; 1080 break; 1081 case 7: 1082 pixelFormat = GGL_PIXEL_FORMAT_A_8; 1083 depthFormat = GGL_PIXEL_FORMAT_Z_16; 1084 break; 1085 default: 1086 return NAME_NOT_FOUND; 1087 } 1088 return NO_ERROR; 1089 } 1090 1091 // ---------------------------------------------------------------------------- 1092 1093 template<typename T> 1094 static int binarySearch(T const sortedArray[], int first, int last, EGLint key) 1095 { 1096 while (first <= last) { 1097 int mid = (first + last) / 2; 1098 if (key > sortedArray[mid].key) { 1099 first = mid + 1; 1100 } else if (key < sortedArray[mid].key) { 1101 last = mid - 1; 1102 } else { 1103 return mid; 1104 } 1105 } 1106 return -1; 1107 } 1108 1109 static int isAttributeMatching(int i, EGLint attr, EGLint val) 1110 { 1111 // look for the attribute in all of our configs 1112 config_pair_t const* configFound = gConfigs[i].array; 1113 int index = binarySearch<config_pair_t>( 1114 gConfigs[i].array, 1115 0, gConfigs[i].size-1, 1116 attr); 1117 if (index < 0) { 1118 configFound = config_base_attribute_list; 1119 index = binarySearch<config_pair_t>( 1120 config_base_attribute_list, 1121 0, NELEM(config_base_attribute_list)-1, 1122 attr); 1123 } 1124 if (index >= 0) { 1125 // attribute found, check if this config could match 1126 int cfgMgtIndex = binarySearch<config_management_t>( 1127 gConfigManagement, 1128 0, NELEM(gConfigManagement)-1, 1129 attr); 1130 if (cfgMgtIndex >= 0) { 1131 bool match = gConfigManagement[cfgMgtIndex].match( 1132 val, configFound[index].value); 1133 if (match) { 1134 // this config matches 1135 return 1; 1136 } 1137 } else { 1138 // attribute not found. this should NEVER happen. 1139 } 1140 } else { 1141 // error, this attribute doesn't exist 1142 } 1143 return 0; 1144 } 1145 1146 static int makeCurrent(ogles_context_t* gl) 1147 { 1148 ogles_context_t* current = (ogles_context_t*)getGlThreadSpecific(); 1149 if (gl) { 1150 egl_context_t* c = egl_context_t::context(gl); 1151 if (c->flags & egl_context_t::IS_CURRENT) { 1152 if (current != gl) { 1153 // it is an error to set a context current, if it's already 1154 // current to another thread 1155 return -1; 1156 } 1157 } else { 1158 if (current) { 1159 // mark the current context as not current, and flush 1160 glFlush(); 1161 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1162 } 1163 } 1164 if (!(c->flags & egl_context_t::IS_CURRENT)) { 1165 // The context is not current, make it current! 1166 setGlThreadSpecific(gl); 1167 c->flags |= egl_context_t::IS_CURRENT; 1168 } 1169 } else { 1170 if (current) { 1171 // mark the current context as not current, and flush 1172 glFlush(); 1173 egl_context_t::context(current)->flags &= ~egl_context_t::IS_CURRENT; 1174 } 1175 // this thread has no context attached to it 1176 setGlThreadSpecific(0); 1177 } 1178 return 0; 1179 } 1180 1181 static EGLBoolean getConfigAttrib(EGLDisplay dpy, EGLConfig config, 1182 EGLint attribute, EGLint *value) 1183 { 1184 size_t numConfigs = NELEM(gConfigs); 1185 int index = (int)config; 1186 if (uint32_t(index) >= numConfigs) 1187 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1188 1189 int attrIndex; 1190 attrIndex = binarySearch<config_pair_t>( 1191 gConfigs[index].array, 1192 0, gConfigs[index].size-1, 1193 attribute); 1194 if (attrIndex>=0) { 1195 *value = gConfigs[index].array[attrIndex].value; 1196 return EGL_TRUE; 1197 } 1198 1199 attrIndex = binarySearch<config_pair_t>( 1200 config_base_attribute_list, 1201 0, NELEM(config_base_attribute_list)-1, 1202 attribute); 1203 if (attrIndex>=0) { 1204 *value = config_base_attribute_list[attrIndex].value; 1205 return EGL_TRUE; 1206 } 1207 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1208 } 1209 1210 static EGLSurface createWindowSurface(EGLDisplay dpy, EGLConfig config, 1211 NativeWindowType window, const EGLint *attrib_list) 1212 { 1213 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1214 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1215 if (window == 0) 1216 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1217 1218 EGLint surfaceType; 1219 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1220 return EGL_FALSE; 1221 1222 if (!(surfaceType & EGL_WINDOW_BIT)) 1223 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1224 1225 if (static_cast<ANativeWindow*>(window)->common.magic != 1226 ANDROID_NATIVE_WINDOW_MAGIC) { 1227 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); 1228 } 1229 1230 EGLint configID; 1231 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1232 return EGL_FALSE; 1233 1234 int32_t depthFormat; 1235 int32_t pixelFormat; 1236 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1237 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1238 } 1239 1240 // FIXME: we don't have access to the pixelFormat here just yet. 1241 // (it's possible that the surface is not fully initialized) 1242 // maybe this should be done after the page-flip 1243 //if (EGLint(info.format) != pixelFormat) 1244 // return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1245 1246 egl_surface_t* surface; 1247 surface = new egl_window_surface_v2_t(dpy, config, depthFormat, 1248 static_cast<ANativeWindow*>(window)); 1249 1250 if (!surface->initCheck()) { 1251 // there was a problem in the ctor, the error 1252 // flag has been set. 1253 delete surface; 1254 surface = 0; 1255 } 1256 return surface; 1257 } 1258 1259 static EGLSurface createPixmapSurface(EGLDisplay dpy, EGLConfig config, 1260 NativePixmapType pixmap, const EGLint *attrib_list) 1261 { 1262 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1263 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1264 if (pixmap == 0) 1265 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1266 1267 EGLint surfaceType; 1268 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1269 return EGL_FALSE; 1270 1271 if (!(surfaceType & EGL_PIXMAP_BIT)) 1272 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1273 1274 if (static_cast<egl_native_pixmap_t*>(pixmap)->version != 1275 sizeof(egl_native_pixmap_t)) { 1276 return setError(EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE); 1277 } 1278 1279 EGLint configID; 1280 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1281 return EGL_FALSE; 1282 1283 int32_t depthFormat; 1284 int32_t pixelFormat; 1285 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1286 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1287 } 1288 1289 if (pixmap->format != pixelFormat) 1290 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1291 1292 egl_surface_t* surface = 1293 new egl_pixmap_surface_t(dpy, config, depthFormat, 1294 static_cast<egl_native_pixmap_t*>(pixmap)); 1295 1296 if (!surface->initCheck()) { 1297 // there was a problem in the ctor, the error 1298 // flag has been set. 1299 delete surface; 1300 surface = 0; 1301 } 1302 return surface; 1303 } 1304 1305 static EGLSurface createPbufferSurface(EGLDisplay dpy, EGLConfig config, 1306 const EGLint *attrib_list) 1307 { 1308 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1309 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1310 1311 EGLint surfaceType; 1312 if (getConfigAttrib(dpy, config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) 1313 return EGL_FALSE; 1314 1315 if (!(surfaceType & EGL_PBUFFER_BIT)) 1316 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1317 1318 EGLint configID; 1319 if (getConfigAttrib(dpy, config, EGL_CONFIG_ID, &configID) == EGL_FALSE) 1320 return EGL_FALSE; 1321 1322 int32_t depthFormat; 1323 int32_t pixelFormat; 1324 if (getConfigFormatInfo(configID, pixelFormat, depthFormat) != NO_ERROR) { 1325 return setError(EGL_BAD_MATCH, EGL_NO_SURFACE); 1326 } 1327 1328 int32_t w = 0; 1329 int32_t h = 0; 1330 while (attrib_list[0]) { 1331 if (attrib_list[0] == EGL_WIDTH) w = attrib_list[1]; 1332 if (attrib_list[0] == EGL_HEIGHT) h = attrib_list[1]; 1333 attrib_list+=2; 1334 } 1335 1336 egl_surface_t* surface = 1337 new egl_pbuffer_surface_t(dpy, config, depthFormat, w, h, pixelFormat); 1338 1339 if (!surface->initCheck()) { 1340 // there was a problem in the ctor, the error 1341 // flag has been set. 1342 delete surface; 1343 surface = 0; 1344 } 1345 return surface; 1346 } 1347 1348 // ---------------------------------------------------------------------------- 1349 }; // namespace android 1350 // ---------------------------------------------------------------------------- 1351 1352 using namespace android; 1353 1354 // ---------------------------------------------------------------------------- 1355 // Initialization 1356 // ---------------------------------------------------------------------------- 1357 1358 EGLDisplay eglGetDisplay(NativeDisplayType display) 1359 { 1360 #ifndef HAVE_ANDROID_OS 1361 // this just needs to be done once 1362 if (gGLKey == -1) { 1363 pthread_mutex_lock(&gInitMutex); 1364 if (gGLKey == -1) 1365 pthread_key_create(&gGLKey, NULL); 1366 pthread_mutex_unlock(&gInitMutex); 1367 } 1368 #endif 1369 if (display == EGL_DEFAULT_DISPLAY) { 1370 EGLDisplay dpy = (EGLDisplay)1; 1371 egl_display_t& d = egl_display_t::get_display(dpy); 1372 d.type = display; 1373 return dpy; 1374 } 1375 return EGL_NO_DISPLAY; 1376 } 1377 1378 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 1379 { 1380 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1381 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1382 1383 EGLBoolean res = EGL_TRUE; 1384 egl_display_t& d = egl_display_t::get_display(dpy); 1385 1386 if (android_atomic_inc(&d.initialized) == 0) { 1387 // initialize stuff here if needed 1388 //pthread_mutex_lock(&gInitMutex); 1389 //pthread_mutex_unlock(&gInitMutex); 1390 } 1391 1392 if (res == EGL_TRUE) { 1393 if (major != NULL) *major = VERSION_MAJOR; 1394 if (minor != NULL) *minor = VERSION_MINOR; 1395 } 1396 return res; 1397 } 1398 1399 EGLBoolean eglTerminate(EGLDisplay dpy) 1400 { 1401 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1402 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1403 1404 EGLBoolean res = EGL_TRUE; 1405 egl_display_t& d = egl_display_t::get_display(dpy); 1406 if (android_atomic_dec(&d.initialized) == 1) { 1407 // TODO: destroy all resources (surfaces, contexts, etc...) 1408 //pthread_mutex_lock(&gInitMutex); 1409 //pthread_mutex_unlock(&gInitMutex); 1410 } 1411 return res; 1412 } 1413 1414 // ---------------------------------------------------------------------------- 1415 // configuration 1416 // ---------------------------------------------------------------------------- 1417 1418 EGLBoolean eglGetConfigs( EGLDisplay dpy, 1419 EGLConfig *configs, 1420 EGLint config_size, EGLint *num_config) 1421 { 1422 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1423 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1424 1425 GLint numConfigs = NELEM(gConfigs); 1426 if (!configs) { 1427 *num_config = numConfigs; 1428 return EGL_TRUE; 1429 } 1430 GLint i; 1431 for (i=0 ; i<numConfigs && i<config_size ; i++) { 1432 *configs++ = (EGLConfig)i; 1433 } 1434 *num_config = i; 1435 return EGL_TRUE; 1436 } 1437 1438 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 1439 EGLConfig *configs, EGLint config_size, 1440 EGLint *num_config) 1441 { 1442 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1443 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1444 1445 if (ggl_unlikely(num_config==0)) { 1446 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1447 } 1448 1449 if (ggl_unlikely(attrib_list==0)) { 1450 /* 1451 * A NULL attrib_list should be treated as though it was an empty 1452 * one (terminated with EGL_NONE) as defined in 1453 * section 3.4.1 "Querying Configurations" in the EGL specification. 1454 */ 1455 static const EGLint dummy = EGL_NONE; 1456 attrib_list = &dummy; 1457 } 1458 1459 int numAttributes = 0; 1460 int numConfigs = NELEM(gConfigs); 1461 uint32_t possibleMatch = (1<<numConfigs)-1; 1462 while(possibleMatch && *attrib_list != EGL_NONE) { 1463 numAttributes++; 1464 EGLint attr = *attrib_list++; 1465 EGLint val = *attrib_list++; 1466 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1467 if (!(possibleMatch & (1<<i))) 1468 continue; 1469 if (isAttributeMatching(i, attr, val) == 0) { 1470 possibleMatch &= ~(1<<i); 1471 } 1472 } 1473 } 1474 1475 // now, handle the attributes which have a useful default value 1476 for (size_t j=0 ; possibleMatch && j<NELEM(config_defaults) ; j++) { 1477 // see if this attribute was specified, if not, apply its 1478 // default value 1479 if (binarySearch<config_pair_t>( 1480 (config_pair_t const*)attrib_list, 1481 0, numAttributes-1, 1482 config_defaults[j].key) < 0) 1483 { 1484 for (int i=0 ; possibleMatch && i<numConfigs ; i++) { 1485 if (!(possibleMatch & (1<<i))) 1486 continue; 1487 if (isAttributeMatching(i, 1488 config_defaults[j].key, 1489 config_defaults[j].value) == 0) 1490 { 1491 possibleMatch &= ~(1<<i); 1492 } 1493 } 1494 } 1495 } 1496 1497 // return the configurations found 1498 int n=0; 1499 if (possibleMatch) { 1500 if (configs) { 1501 for (int i=0 ; config_size && i<numConfigs ; i++) { 1502 if (possibleMatch & (1<<i)) { 1503 *configs++ = (EGLConfig)i; 1504 config_size--; 1505 n++; 1506 } 1507 } 1508 } else { 1509 for (int i=0 ; i<numConfigs ; i++) { 1510 if (possibleMatch & (1<<i)) { 1511 n++; 1512 } 1513 } 1514 } 1515 } 1516 *num_config = n; 1517 return EGL_TRUE; 1518 } 1519 1520 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1521 EGLint attribute, EGLint *value) 1522 { 1523 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1524 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1525 1526 return getConfigAttrib(dpy, config, attribute, value); 1527 } 1528 1529 // ---------------------------------------------------------------------------- 1530 // surfaces 1531 // ---------------------------------------------------------------------------- 1532 1533 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1534 NativeWindowType window, 1535 const EGLint *attrib_list) 1536 { 1537 return createWindowSurface(dpy, config, window, attrib_list); 1538 } 1539 1540 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1541 NativePixmapType pixmap, 1542 const EGLint *attrib_list) 1543 { 1544 return createPixmapSurface(dpy, config, pixmap, attrib_list); 1545 } 1546 1547 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1548 const EGLint *attrib_list) 1549 { 1550 return createPbufferSurface(dpy, config, attrib_list); 1551 } 1552 1553 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface) 1554 { 1555 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1556 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1557 if (eglSurface != EGL_NO_SURFACE) { 1558 egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) ); 1559 if (!surface->isValid()) 1560 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1561 if (surface->dpy != dpy) 1562 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1563 if (surface->ctx) { 1564 // FIXME: this surface is current check what the spec says 1565 surface->disconnect(); 1566 surface->ctx = 0; 1567 } 1568 delete surface; 1569 } 1570 return EGL_TRUE; 1571 } 1572 1573 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface eglSurface, 1574 EGLint attribute, EGLint *value) 1575 { 1576 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1577 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1578 egl_surface_t* surface = static_cast<egl_surface_t*>(eglSurface); 1579 if (!surface->isValid()) 1580 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1581 if (surface->dpy != dpy) 1582 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1583 1584 EGLBoolean ret = EGL_TRUE; 1585 switch (attribute) { 1586 case EGL_CONFIG_ID: 1587 ret = getConfigAttrib(dpy, surface->config, EGL_CONFIG_ID, value); 1588 break; 1589 case EGL_WIDTH: 1590 *value = surface->getWidth(); 1591 break; 1592 case EGL_HEIGHT: 1593 *value = surface->getHeight(); 1594 break; 1595 case EGL_LARGEST_PBUFFER: 1596 // not modified for a window or pixmap surface 1597 break; 1598 case EGL_TEXTURE_FORMAT: 1599 *value = EGL_NO_TEXTURE; 1600 break; 1601 case EGL_TEXTURE_TARGET: 1602 *value = EGL_NO_TEXTURE; 1603 break; 1604 case EGL_MIPMAP_TEXTURE: 1605 *value = EGL_FALSE; 1606 break; 1607 case EGL_MIPMAP_LEVEL: 1608 *value = 0; 1609 break; 1610 case EGL_RENDER_BUFFER: 1611 // TODO: return the real RENDER_BUFFER here 1612 *value = EGL_BACK_BUFFER; 1613 break; 1614 case EGL_HORIZONTAL_RESOLUTION: 1615 // pixel/mm * EGL_DISPLAY_SCALING 1616 *value = surface->getHorizontalResolution(); 1617 break; 1618 case EGL_VERTICAL_RESOLUTION: 1619 // pixel/mm * EGL_DISPLAY_SCALING 1620 *value = surface->getVerticalResolution(); 1621 break; 1622 case EGL_PIXEL_ASPECT_RATIO: { 1623 // w/h * EGL_DISPLAY_SCALING 1624 int wr = surface->getHorizontalResolution(); 1625 int hr = surface->getVerticalResolution(); 1626 *value = (wr * EGL_DISPLAY_SCALING) / hr; 1627 } break; 1628 case EGL_SWAP_BEHAVIOR: 1629 *value = surface->getSwapBehavior(); 1630 break; 1631 default: 1632 ret = setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1633 } 1634 return ret; 1635 } 1636 1637 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1638 EGLContext share_list, const EGLint *attrib_list) 1639 { 1640 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1641 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1642 1643 ogles_context_t* gl = ogles_init(sizeof(egl_context_t)); 1644 if (!gl) return setError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); 1645 1646 egl_context_t* c = static_cast<egl_context_t*>(gl->rasterizer.base); 1647 c->flags = egl_context_t::NEVER_CURRENT; 1648 c->dpy = dpy; 1649 c->config = config; 1650 c->read = 0; 1651 c->draw = 0; 1652 return (EGLContext)gl; 1653 } 1654 1655 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1656 { 1657 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1658 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1659 egl_context_t* c = egl_context_t::context(ctx); 1660 if (c->flags & egl_context_t::IS_CURRENT) 1661 setGlThreadSpecific(0); 1662 ogles_uninit((ogles_context_t*)ctx); 1663 return EGL_TRUE; 1664 } 1665 1666 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1667 EGLSurface read, EGLContext ctx) 1668 { 1669 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1670 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1671 if (draw) { 1672 egl_surface_t* s = (egl_surface_t*)draw; 1673 if (!s->isValid()) 1674 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1675 if (s->dpy != dpy) 1676 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1677 // TODO: check that draw is compatible with the context 1678 } 1679 if (read && read!=draw) { 1680 egl_surface_t* s = (egl_surface_t*)read; 1681 if (!s->isValid()) 1682 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1683 if (s->dpy != dpy) 1684 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1685 // TODO: check that read is compatible with the context 1686 } 1687 1688 EGLContext current_ctx = EGL_NO_CONTEXT; 1689 1690 if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT)) 1691 return setError(EGL_BAD_MATCH, EGL_FALSE); 1692 1693 if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT)) 1694 return setError(EGL_BAD_MATCH, EGL_FALSE); 1695 1696 if (ctx == EGL_NO_CONTEXT) { 1697 // if we're detaching, we need the current context 1698 current_ctx = (EGLContext)getGlThreadSpecific(); 1699 } else { 1700 egl_context_t* c = egl_context_t::context(ctx); 1701 egl_surface_t* d = (egl_surface_t*)draw; 1702 egl_surface_t* r = (egl_surface_t*)read; 1703 if ((d && d->ctx && d->ctx != ctx) || 1704 (r && r->ctx && r->ctx != ctx)) { 1705 // one of the surface is bound to a context in another thread 1706 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1707 } 1708 } 1709 1710 ogles_context_t* gl = (ogles_context_t*)ctx; 1711 if (makeCurrent(gl) == 0) { 1712 if (ctx) { 1713 egl_context_t* c = egl_context_t::context(ctx); 1714 egl_surface_t* d = (egl_surface_t*)draw; 1715 egl_surface_t* r = (egl_surface_t*)read; 1716 1717 if (c->draw) { 1718 egl_surface_t* s = reinterpret_cast<egl_surface_t*>(c->draw); 1719 s->disconnect(); 1720 } 1721 if (c->read) { 1722 // FIXME: unlock/disconnect the read surface too 1723 } 1724 1725 c->draw = draw; 1726 c->read = read; 1727 1728 if (c->flags & egl_context_t::NEVER_CURRENT) { 1729 c->flags &= ~egl_context_t::NEVER_CURRENT; 1730 GLint w = 0; 1731 GLint h = 0; 1732 if (draw) { 1733 w = d->getWidth(); 1734 h = d->getHeight(); 1735 } 1736 ogles_surfaceport(gl, 0, 0); 1737 ogles_viewport(gl, 0, 0, w, h); 1738 ogles_scissor(gl, 0, 0, w, h); 1739 } 1740 if (d) { 1741 if (d->connect() == EGL_FALSE) { 1742 return EGL_FALSE; 1743 } 1744 d->ctx = ctx; 1745 d->bindDrawSurface(gl); 1746 } 1747 if (r) { 1748 // FIXME: lock/connect the read surface too 1749 r->ctx = ctx; 1750 r->bindReadSurface(gl); 1751 } 1752 } else { 1753 // if surfaces were bound to the context bound to this thread 1754 // mark then as unbound. 1755 if (current_ctx) { 1756 egl_context_t* c = egl_context_t::context(current_ctx); 1757 egl_surface_t* d = (egl_surface_t*)c->draw; 1758 egl_surface_t* r = (egl_surface_t*)c->read; 1759 if (d) { 1760 c->draw = 0; 1761 d->ctx = EGL_NO_CONTEXT; 1762 d->disconnect(); 1763 } 1764 if (r) { 1765 c->read = 0; 1766 r->ctx = EGL_NO_CONTEXT; 1767 // FIXME: unlock/disconnect the read surface too 1768 } 1769 } 1770 } 1771 return EGL_TRUE; 1772 } 1773 return setError(EGL_BAD_ACCESS, EGL_FALSE); 1774 } 1775 1776 EGLContext eglGetCurrentContext(void) 1777 { 1778 // eglGetCurrentContext returns the current EGL rendering context, 1779 // as specified by eglMakeCurrent. If no context is current, 1780 // EGL_NO_CONTEXT is returned. 1781 return (EGLContext)getGlThreadSpecific(); 1782 } 1783 1784 EGLSurface eglGetCurrentSurface(EGLint readdraw) 1785 { 1786 // eglGetCurrentSurface returns the read or draw surface attached 1787 // to the current EGL rendering context, as specified by eglMakeCurrent. 1788 // If no context is current, EGL_NO_SURFACE is returned. 1789 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1790 if (ctx == EGL_NO_CONTEXT) return EGL_NO_SURFACE; 1791 egl_context_t* c = egl_context_t::context(ctx); 1792 if (readdraw == EGL_READ) { 1793 return c->read; 1794 } else if (readdraw == EGL_DRAW) { 1795 return c->draw; 1796 } 1797 return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); 1798 } 1799 1800 EGLDisplay eglGetCurrentDisplay(void) 1801 { 1802 // eglGetCurrentDisplay returns the current EGL display connection 1803 // for the current EGL rendering context, as specified by eglMakeCurrent. 1804 // If no context is current, EGL_NO_DISPLAY is returned. 1805 EGLContext ctx = (EGLContext)getGlThreadSpecific(); 1806 if (ctx == EGL_NO_CONTEXT) return EGL_NO_DISPLAY; 1807 egl_context_t* c = egl_context_t::context(ctx); 1808 return c->dpy; 1809 } 1810 1811 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1812 EGLint attribute, EGLint *value) 1813 { 1814 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1815 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1816 egl_context_t* c = egl_context_t::context(ctx); 1817 switch (attribute) { 1818 case EGL_CONFIG_ID: 1819 // Returns the ID of the EGL frame buffer configuration with 1820 // respect to which the context was created 1821 return getConfigAttrib(dpy, c->config, EGL_CONFIG_ID, value); 1822 } 1823 return setError(EGL_BAD_ATTRIBUTE, EGL_FALSE); 1824 } 1825 1826 EGLBoolean eglWaitGL(void) 1827 { 1828 return EGL_TRUE; 1829 } 1830 1831 EGLBoolean eglWaitNative(EGLint engine) 1832 { 1833 return EGL_TRUE; 1834 } 1835 1836 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1837 { 1838 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1839 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1840 1841 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 1842 if (!d->isValid()) 1843 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1844 if (d->dpy != dpy) 1845 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1846 1847 // post the surface 1848 d->swapBuffers(); 1849 1850 // if it's bound to a context, update the buffer 1851 if (d->ctx != EGL_NO_CONTEXT) { 1852 d->bindDrawSurface((ogles_context_t*)d->ctx); 1853 // if this surface is also the read surface of the context 1854 // it is bound to, make sure to update the read buffer as well. 1855 // The EGL spec is a little unclear about this. 1856 egl_context_t* c = egl_context_t::context(d->ctx); 1857 if (c->read == draw) { 1858 d->bindReadSurface((ogles_context_t*)d->ctx); 1859 } 1860 } 1861 1862 return EGL_TRUE; 1863 } 1864 1865 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1866 NativePixmapType target) 1867 { 1868 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1869 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1870 // TODO: eglCopyBuffers() 1871 return EGL_FALSE; 1872 } 1873 1874 EGLint eglGetError(void) 1875 { 1876 return getError(); 1877 } 1878 1879 const char* eglQueryString(EGLDisplay dpy, EGLint name) 1880 { 1881 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1882 return setError(EGL_BAD_DISPLAY, (const char*)0); 1883 1884 switch (name) { 1885 case EGL_VENDOR: 1886 return gVendorString; 1887 case EGL_VERSION: 1888 return gVersionString; 1889 case EGL_EXTENSIONS: 1890 return gExtensionsString; 1891 case EGL_CLIENT_APIS: 1892 return gClientApiString; 1893 } 1894 return setError(EGL_BAD_PARAMETER, (const char *)0); 1895 } 1896 1897 // ---------------------------------------------------------------------------- 1898 // EGL 1.1 1899 // ---------------------------------------------------------------------------- 1900 1901 EGLBoolean eglSurfaceAttrib( 1902 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1903 { 1904 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1905 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1906 // TODO: eglSurfaceAttrib() 1907 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1908 } 1909 1910 EGLBoolean eglBindTexImage( 1911 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1912 { 1913 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1914 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1915 // TODO: eglBindTexImage() 1916 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1917 } 1918 1919 EGLBoolean eglReleaseTexImage( 1920 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1921 { 1922 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1923 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1924 // TODO: eglReleaseTexImage() 1925 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1926 } 1927 1928 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1929 { 1930 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1931 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1932 // TODO: eglSwapInterval() 1933 return EGL_TRUE; 1934 } 1935 1936 // ---------------------------------------------------------------------------- 1937 // EGL 1.2 1938 // ---------------------------------------------------------------------------- 1939 1940 EGLBoolean eglBindAPI(EGLenum api) 1941 { 1942 if (api != EGL_OPENGL_ES_API) 1943 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1944 return EGL_TRUE; 1945 } 1946 1947 EGLenum eglQueryAPI(void) 1948 { 1949 return EGL_OPENGL_ES_API; 1950 } 1951 1952 EGLBoolean eglWaitClient(void) 1953 { 1954 glFinish(); 1955 return EGL_TRUE; 1956 } 1957 1958 EGLBoolean eglReleaseThread(void) 1959 { 1960 // TODO: eglReleaseThread() 1961 return EGL_TRUE; 1962 } 1963 1964 EGLSurface eglCreatePbufferFromClientBuffer( 1965 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1966 EGLConfig config, const EGLint *attrib_list) 1967 { 1968 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 1969 return setError(EGL_BAD_DISPLAY, EGL_NO_SURFACE); 1970 // TODO: eglCreatePbufferFromClientBuffer() 1971 return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1972 } 1973 1974 // ---------------------------------------------------------------------------- 1975 // EGL_EGLEXT_VERSION 3 1976 // ---------------------------------------------------------------------------- 1977 1978 void (*eglGetProcAddress (const char *procname))() 1979 { 1980 extention_map_t const * const map = gExtentionMap; 1981 for (uint32_t i=0 ; i<NELEM(gExtentionMap) ; i++) { 1982 if (!strcmp(procname, map[i].name)) { 1983 return map[i].address; 1984 } 1985 } 1986 return NULL; 1987 } 1988 1989 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1990 const EGLint *attrib_list) 1991 { 1992 EGLBoolean result = EGL_FALSE; 1993 return result; 1994 } 1995 1996 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1997 { 1998 EGLBoolean result = EGL_FALSE; 1999 return result; 2000 } 2001 2002 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 2003 EGLClientBuffer buffer, const EGLint *attrib_list) 2004 { 2005 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2006 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 2007 } 2008 if (ctx != EGL_NO_CONTEXT) { 2009 return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 2010 } 2011 if (target != EGL_NATIVE_BUFFER_ANDROID) { 2012 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2013 } 2014 2015 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)buffer; 2016 2017 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2018 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2019 2020 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2021 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2022 2023 switch (native_buffer->format) { 2024 case HAL_PIXEL_FORMAT_RGBA_8888: 2025 case HAL_PIXEL_FORMAT_RGBX_8888: 2026 case HAL_PIXEL_FORMAT_RGB_888: 2027 case HAL_PIXEL_FORMAT_RGB_565: 2028 case HAL_PIXEL_FORMAT_BGRA_8888: 2029 case HAL_PIXEL_FORMAT_RGBA_5551: 2030 case HAL_PIXEL_FORMAT_RGBA_4444: 2031 break; 2032 default: 2033 return setError(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR); 2034 } 2035 2036 native_buffer->common.incRef(&native_buffer->common); 2037 return (EGLImageKHR)native_buffer; 2038 } 2039 2040 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2041 { 2042 if (egl_display_t::is_valid(dpy) == EGL_FALSE) { 2043 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2044 } 2045 2046 ANativeWindowBuffer* native_buffer = (ANativeWindowBuffer*)img; 2047 2048 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) 2049 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2050 2051 if (native_buffer->common.version != sizeof(ANativeWindowBuffer)) 2052 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2053 2054 native_buffer->common.decRef(&native_buffer->common); 2055 2056 return EGL_TRUE; 2057 } 2058 2059 // ---------------------------------------------------------------------------- 2060 // ANDROID extensions 2061 // ---------------------------------------------------------------------------- 2062 2063 EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2064 EGLint left, EGLint top, EGLint width, EGLint height) 2065 { 2066 if (egl_display_t::is_valid(dpy) == EGL_FALSE) 2067 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2068 2069 egl_surface_t* d = static_cast<egl_surface_t*>(draw); 2070 if (!d->isValid()) 2071 return setError(EGL_BAD_SURFACE, EGL_FALSE); 2072 if (d->dpy != dpy) 2073 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2074 2075 // post the surface 2076 d->setSwapRectangle(left, top, width, height); 2077 2078 return EGL_TRUE; 2079 } 2080
